fix(logger): sync dubbo-go logger facade during logger initialization

[XnLemon]

Description

Fixes #3339

在 logger 初始化阶段，dubbo-go 自身的 loggerfacade（dubbo.apache.org/dubbo-go/v3/logger）从未被同步设置。初始化代码只调用了 github.com/dubbogo/gost/log/logger.SetLogger() 和 getty.SetLogger()，导致 facade 内部的全局变量始终为 nil
用户调用 dubboLogger.SetLoggerLevel() 时，facade 对 nil 做类型断言，静默返回 false ，日志级别调整完全不生效。

修复内容：

• fix(logger): sync dubbo-go logger facade in LoggerConfig.Init()
  修复 config/logger_config.go 的 Init() 方法，在设置 gost logger 和 getty 的同时，同步设置 dubbo-go
  facade。同时为两个 logger 包的 import 添加明确的 alias（gostLogger / dubboLogger）避免包名歧义。

• fix(logger): sync dubbo-go logger facade in config_loader init()
  修复 config/config_loader.go 的 init() 函数，程序启动时的默认 zap logger 同步设置到 dubbo-go
  facade。

• fix(logger): sync dubbo-go logger facade in initGlobalLogger()
  修复 instance_options_init.go 的 initGlobalLogger() 方法，dubbo.NewInstance() 初始化路径下同步设置
  dubbo-go facade。

• test(logger): verify dubbo-go facade is synced after logger initialization
  新增测试覆盖：zap driver、logrus driver、zap + trace-integration 三条路径，验证 facade 初始化后不为
  nil，且 SetLoggerLevel 在 zap driver 下能正确生效（包括开启 trace-integration 时通过 ZapCtxLogger
  wrapper 的透传）。

Btw：
第一次提pr，辛苦reviewer了owo

Checklist

• I confirm the target branch is develop
• Code has passed local testing
• I have added tests that prove my fix is effective or that my feature works

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov-commenter]

Codecov Report

❌ Patch coverage is 52.38095% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 52.45%. Comparing base (60d1c2a) to head (6612623).
⚠️ Report is 807 commits behind head on develop.

Files with missing lines	Patch %	Lines
instance_options_init.go	37.50%	10 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3345      +/-   ##
===========================================
+ Coverage    46.76%   52.45%   +5.68%     
===========================================
  Files          295      492     +197     
  Lines        17172    37793   +20621     
===========================================
+ Hits          8031    19825   +11794     
- Misses        8287    16367    +8080     
- Partials       854     1601     +747     

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[Alanxtl]

cool work 下次记得在issue里面先留言，这样我就可以直接assign给你了，要不有可能和别人干重复

[Alanxtl]

lgtm

[XnLemon]

okok下次会记得的！-w-

cool work 下次记得在issue里面先留言，这样我就可以直接assign给你了，要不有可能和别人干重复